Von Grabow appeared for the arraignment hearing in Boulder County District Court and faces several charges, including first-degree murder.

He also faces three counts of attempted first-degree murder, two counts of menacing, three counts of stalking, and counts of first-degree arson, criminal extortion, third-degree assault, criminal mischief and harassment.

Four additional crime-of-violence sentence enhancers were also added by prosecutors.

In November, prosecutors said the teen had a “kill list” and that he was a mile away from the third person on his list when he was arrested.